chore: remove JSON.stringify/parse in TS version
What does this MR do and why?
chore: remove JSON.stringify/parse in TS version
The usage of JSON.stringify/parse is a relic from the rust version where this was necessary to encode/decode data at the WASM boundary. The typescript version doesn't need to do the same thing.
How to set up and validate locally
Numbered steps to set up and validate the change are strongly suggested.